Bed of nails type testers generally test ONLY passive components, not
active.  Opens + Shorts and resistance.

JeffG


Don Walker wrote:

> Hey Technetters,
>         My company is beginning to look into the benefits to be had by
> having our
> assemblies tested at the assembly house.  My question is, "what should
> my
> questions be?"  Our volume is pretty modest; our largest volume
> assemblies
> are in the area of a few thousand a year and that is distributed over
> several different orders.  We probably have somewhere near 300
> different
> active assemblies.  We go through a quoting cycle for each new
> purchase so
> there is always the potential that we may bounce around several
> different
> assembly houses.
>         Obviously, I want to make our requirements as generic as
> possible.  Is
> there an IPC (or other) spec for this?  What kind of tests are
> typically
> done?  Simple connectivity?  Partial/full functionality?  If the
> latter,
> then what are the requirements needed for setup?  I understand the
> preference for all nets to be access able from the back of the board.
> What
> are the preferred and possible placement grids for the test points?
>         Any help you could give would be appreciated.  I am ignorant
> -- please
> educate me.  Any vendor sales pitches can email me directly -- please,
> no
> phone calls.
>
> Thanks in advance,
> Don Walker
> [log in to unmask]
>
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